US4034200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article of furniture
Assignee: Individual
•
Filing: 1975-12-11
•
Granted: 1977-07-05
•
Expires: 1995-12-11
Abstract
Abstract A rotatable heating unit for supporting food receptacles is convertible to a rotatable unheated unit, and comprises a base, and a circular support rotatably mounted on said base, having a depressed central surface. Means are provided for heating said depressed central surface and thereby heating food receptacles supported thereon. A removable cover substantially fills the depressed central portion of said support to form with the surrounding portion of said support a substantially level unheated surface for supporting food receptacles. Means are provided for spacing said cover from said depressed central surface.
Inventors
- 👤 Gerhardus Johannes Cornelius Visagie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:09
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/24; A47J39/00; A47J39/02; A47J39/025; H; H05; H05B; H05B3/00; H05B3/68; H05B2203/00; H05B2203/028
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
81 words
A rotatable heating unit for supporting food receptacles, which is convertible to a rotatable unheated unit, comprising a base, a circular support rotatably mounted on said base, having a depressed central surface, means for heating said depressed central surface and thereby heating food receptacles supported thereon, a removable cover which substantially fills the depressed central portion of said support and comprises a substantially level unheated surface for supporting food receptacles, and means for spacing said cover from said depressed central surface.
Claim 2
Dependent Claim
81 words
A rotatable heating unit for supporting food receptacles, which is convertible to a rotatable unheated unit, comprising a base, a circular support rotatably mounted on said base, having a depressed central surface, means for heating said depressed central surface and thereby heating food receptacles supported thereon, a removable cover which substantially fills the depressed central portion of said support and comprises a substantially level unheated surface for supporting food receptacles, and means for spacing said cover from said depressed central surface.
Claim 3
Dependent Claim
21 words
A table having a substantially centrally located recess, and a rotatable heating unit according to claim 1 located in said recess.
Claim 4
Dependent Claim
17 words
The table of claim 2 including means for adjusting the position of the unit in the recess.
Claim 5
Dependent Claim
26 words
A table according to claim 2 wherein the depth of the recess is at least as great as the vertical height of the rotatable heating unit.
Claim 6
Dependent Claim
18 words
A table according to claim 4 wherein the cover is substantially flush with the top of the table.
Claim 7
Dependent Claim
13 words
A table according to claim 2 wherein the rotatable heating unit is removable.
Claim 8
Dependent Claim
23 words
A table according to claim 6 provided with auxiliary means for rotatably supporting the cover when the rotatable heating unit has been removed.
Claim 9
Dependent Claim
43 words
A table according to claim 7 wherein the auxiliary means comprises an auxiliary circular support having a depressed central portion which is substantially filled by the cover, and means for rotatably supporting said auxiliary support substantially flush with the top of the table.
Claim 10
Dependent Claim
23 words
A rotatable heating unit according to claim 1 wherein the cover comprises two semi-circular halves defining together a centrally located finger engageable hole.
Claim 11
Dependent Claim
55 words
A rotatable heating unit according to claim 1 wherein the heating means is electrical, and the unit comprises a switch which is normally biased to its closed position, for supplying current to the heating means and which is arranged to be held open by the weight of the cover when the cover is in place.
Claim 12
Dependent Claim
23 words
A rotatable heating unit according to claim 1 wherein the depressed central portion of the support has a surrounding radially-extending finger engageable groove.
References Cited (Backward Citations)
US1120758A
Cited
US1158475A
Cited
US2439133A
Cited
US2548932A
Cited
US2897330A
Cited
US3636299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |